Is my power supply powerful enough to use this card?

power supply:

Video Card:

I am not going to overclock the card.

Or should I get the Saphire radeon 7770?
8 answers Last reply Best Answer
More about power supply powerful card
  1. Yes it will work fine.
  2. if you could list off the specs of the machine, we can calculate power needed more accurately however at first glance it does appear you are pushing it on that psu with the 7850
  3. in the details section for the card it reads:
    System Requirements
    Minimum of a 500 Watt power supply.
    you have selected a psu that is 430w, so id say no. i know you cant always go by what the system requirements say, but i try not to under shoot the recommended power setting bc you will be running other things w the psu.
  4. Dell Inspiron 570
    Windows 7 home premium 64 bit
    8gb 1066mhz ddr3 ram
    AMD athlon II X4 630 2.8Ghz
    750gb hard drive
  5. Best answer
    The PC I'm writing this on has a 300 Watt power supply, a Core i5 processor and 7850...
    ( )

    Ignore Watts, they are irelevant, it's the number of amps the PSU can provide that matters. The 7850 needs 21 amps according to Nvidia, that PSU can supply 32 amps so not only is it powerful enough, I'd be pretty confident you could power 2 7850s in crossfire with it (The card draws 12 amps, the 21 amps recommended is Nvidia's estimated total system power draw)
  6. -- you can use this link to give you an idea of what you should be looking at. just put in what your full system would be and it will give you an idea of what psu wattage you should be shopping for.
  7. ramos8414 said:
    power supply:

    Video Card:

    I am not going to overclock the card.

    Or should I get the Saphire radeon 7770?

    Hi - gopher is correct, you have more than enough +12v amps to run a system with an hd7850. AMD &
    Nvidia routinely overstate the wattage requirements for their cards. This is to allow for PSU's that don't
    deliver their rated specs (there are a lot of them) and for older PSU designs that didn't put enough
    power on the +12v rail(s) which is where the CPU and GPU draw their current from.

    You could in fact run a 7870 or 7950 in that system from a +12v power standpoint. You would need to
    use a molex to pcie adapter with those cards as they require two and the cx430 has one.
  8. Since your PSU is from Corsair you should be fine. If it were a off brand then I would say replace it but in this case I feel you would be OK.
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